Composition and structure of air compressor
1: oil circulation system
Before starting, start the oil pump control system first. After starting the oil pump control system, ensure that all lubricating parts of the air compressor are lubricated well. At the same time, the oil pump control system can adjust the internal oil pressure and oil temperature through the built-in temperature control valve to meet the system needs.
2. Gas circuit circulation system
When the air compressor works, the air is sucked through the self-cleaning air filter, and the filter is automatically cleaned by PLC. After the air is automatically adjusted by the inlet guide vane, it enters the first-stage compression. After the first-stage compression, the gas has a higher temperature, and then enters the intercooler for cooling (water goes inside the pipe and gas goes outside the pipe, and the water flow rate of the intercooler is required to be 110m/h), and then enters the second-stage compression system. In order to prevent the gas in the system from pouring into the compression chamber (to avoid starting under pressure), a suspension check valve is installed in the exhaust pipe of the compressor. The gas discharged from the compressor pushes the check valve open and enters the exhaust muffler, then enters the primary aftercooler, the secondary aftercooler and then enters the main exhaust pipe.
3. Waterway circulation system
Cooling water enters the intercooler of the air compressor through pipelines to cool the gas discharged from the first stage compression, and then enters the aftercooler to cool the exhaust gas. The other cooling water inlet pipeline cools the motor windings through two sets of heat exchangers on the upper part of the main motor, and the other cooling water inlet pipeline cools the oil cooler.
4. Distribution system
The air compressor is a 2000kW high-voltage motor (10kV), which is started by full voltage. The control cabinet is an indoor AC and metal armored drawer-type switchgear. The switchgear consists of a fixed cabinet and a drawer-type component, i.e. a handcart, which realizes the purposes of control, protection and monitoring and has the function of "five defenses".
5. Screen protection system
The central signal device of air compressor is divided into two types: accident signal and warning signal. The main task of the accident signal is to send out the sound signal in time when the circuit breaker trips, and make the corresponding circuit breaker light position signal flash. The main task of the warning signal is to send out an audio signal instantaneously or with delay when abnormal phenomena occur in the running equipment, and make the light plate display the contents of abnormal phenomena.
